Forecast of the volume of sales index in the Brazilian petroleum sector using artificial neural networks. ITEGAM-JETIA, [S. l.], v. 4, n. 14, p. 27–31, 2018. DOI: 10.5935/2447-0228.201826. Disponível em: https://itegam-jetia.org/journal/index.php/jetia/article/view/26. Acesso em: 23 oct. 2026.